Liquid driven motor



July 24, 195151 QA, GRANowsKl 2,561,858Y

v LIQUID DRIVEN' MOTOR Filed NOV. 2l, 1947 Y 2 Sheets-Shed. l l J2 3f 2g /,HM

l v @i 20 T @n -ilu 5 2 INVENTOR. O 5 CAR ADOUH CRANOMI Sm BY Mu, X/ v AGE NT 5 July 24, 1951 o. A. GRANowsKl 2,561,858

LIQUIDDRIVEN MOTOR Filed Nov. 21, 1947 2 Sheets-Sheet 2 une' INVENTOR.

SCAR ADOLPH GRANOWSKI BY M2M@ XMS2 Q AGEN TS Patented July 24, 1951 LIQUID DRIVENIIWOTOR4 Oscar Adolf Granowski, Kooyong, Victoria,. Australia,v assigner of one-half toA Louise Wilhelmina Grran'owski,I Kooyong, Victoria, Australia Application: November 21., 1947, SerialNo. 787,315 In. Australia April- 21946 Section 1, Public Law 690, August 8, 1946 Patent expires AprilZ, 1966 vThisl invention relates to liquid driven motors and refers especially to a motor driven by Water :trom household Water mains which is capable 4 claims, (01., 121-99) in the vvalve chamber, `end ports in the valve of' imparting reciprocating'angular motionto the impeller, clothes receptacle or other clothes agitating device off' a domestic` Washing machine.

`Ani object of 4 this` invention is to: provide a motor of the abovementioned type which Will effectivelyI perform the Work required of' it, which is compact in shape and' size, which is particularly economical' to manufacture, andl which is reliable and durable in use.

Another object is to provide a liquid driven tmotorwhich can bemounted on the iixed central vertical shaft of a Washing machine and' which can bereadily coupled tother clothes receptacle or-L impeller of the machine soas to effect an oscillatingy motion of said receptacle or impeller for the Washingr operation.

According' to` the invention, a` liquid driven motor comprises a Xed shaft, a iiXed casing mounted concentricallyonthe shaft, a cylindrical rotor chamber in the casing, a rotor rotatably mounted on the shaft andi within the rotor chamber and capable of oscillating motion in `said` rotor chamber, at least tworadiall walls in the4 rotor chamber extending between the rotor and" the periphery of the rotor chamber and dividing said rotor chamber into at least two segmental chambers; at least two radial vanes onl the rotor and spaced equidistantly` from each other, one of said vanes being` located in each segmental chamber and beingy capable of limited oscillating motion therein, each radial vane dividing the segmental chamber in which it` is located into a first compartment and a second compartment, a valve body secured to the casing at one end ofthe rotor chamber, a valve chamber.` in the valve body,` a valve slidable in the valve chamber, a longitudinal inletpassage inthe shaft through which liquid' under lpressure is supplied to the motor, an outlet passage for the discharge of"liquid= from the motor; an inlet port in the valve chamber communicating with the inlet passage, an outlet port in the valve chamber communicating` with the outlet passage, intermediate ports` in the Valve chamber, a first arcuate channel in thevalve body communicating between one `intermediate `port and the irst compartments, a second arcuate channel in the valve body communicating between the other intermediate port and the secondl compartments, channels in the' valvewhich` alternately place the intermediate` ports in` communication. withzjhe inletand, outlet portsf as the.: valvereciprocates chamber` adjacent the ends thereof, valvel oper- 4 ating `ports in the endof the rotor chamber which communicate with the said end ports, a valvemember on one of the radial vanes, which valve member is in sliding contact with the said end ofl thelrotor chamber, supplyV channels inthe said valve member which alternately connect the valve operating ports to the inlet passage when the rotor is in its limiting, positions, andi discharge passages in the valve` member which alternately connect the-valve operating ports to the outlet passage, each valve operating port being connected to supply when the other is connected, to,y discharge; A

A. feature of the invention resides in the provisionoi at leastrtwoA radial vanes onthe, rotor, the said. vanes being spaced. eduidistantly from eachother around the rotor,. whereby therotational thrust appliedto, the rotor is` distributed `uniformly therearound.

A further-feature, consists, in providing a valve face; on one ofthe radial vanes or on a iiange thereof, Whichvalveface slidably engages a valve face ontheendr of the rotor chamber, passages being. formed, in said vane or flange which cooperate` with` passagesin` the Valve body so, that the said. vane constitutes a, valve which controls theadm-issionof liquid toand discharge of liquid from the valve chamber to operate the slide valve.

Other objectsy and, features of the invention will be apparent from the ensuing. description of. the preferred formof the invention illustrated in` the accompanying drawings,A and. wherein:

Figurey l. is.. a View in. sectional elevation. of a Water driven motor for a washing machine;

Figure, 2 isa view in., sectional plany taken on the line 2--2` of Figure l;

Figure 3 is a view in sectional plan taken: on the line 3--3V of Figure L;

Figure i is a view in plan `of the plate` which closes the. lower end. of the rotor chamber; Y Figure. 5- is'l a view inr elevation taken on` the line 5.--5r ofli'ig-ure. 4;; 3

Figure 6- is a view in plan of the valve, body, thevalve being shown inL one position, and: v i

Figure 7: is a fragmentary plan view of the body` shown: in Eigurerfilthe valve being shown `in the` opposite, position..

Referring tothe drawings, wherein the? same reference numerals are employed toindicatelike `or.` corresponding parts, the: reference numeral Uli indicates the-` vertical.` shaft` ci a: Washing machine.;` The shaft, lo, is fixed: centrallyy inf` the Vtact with said end.

machine and is provided with a longitudinal inlet A cylindrical fixed casing I3 surrounds the shaft and an upper coverplate I4 and a valve` plate or lower coverplate I5 are bolted or otherwise secured to itsV upper and lower ends'.` -Diametrically opposite radial walls I6, I1 are formed integrally with the .casing I3 and ,divide the interior thereof into segmental chambers of semi-circular cross-section. A transverse `slot I5 is provided in the upper` surface of the plate I5 which ts over the lower ends of the walls I6, I1. i

A rotor I8 fitsv rotatably on rests at its lower end on the valve plate I5. Radial vanes I9 and 20 are provided on the rotor I8 on opposite sides thereof. The vane I9 divides thefcha'mb'er in which it is located into compart- 'ments 2l, 22, and the vane 26 divides the opposite chamber into compartments 23, 24. The'- lower end of thevane is formed integrally with aplate of segmental shape which is Provided withupstanding flanges 26, 21 on either'lside of the vane 26 for the purpose hereinafter described. Thusthe rotor is capable of oscillating movement which is limited by the end faces of theplate 25 engaging the walls I6, I'I.

The upper end vof the rotor I8 is rotatable in a boss 28 formed integrally with the coverplate II4,V and issecuredfby screws 29 to a coupling member 30. Holes 3| are provided in the couplingr member 36 intowhich pins32 are lowered when` itis desired tocouple the motor to the clothes receptacle, impeller or other unit (not shown) of the machine.l

valve body 33 secured to the underside of the valve plate I5 and is mounted on and secured to a bottom plate 34.. A cylindrical valve chamber 35 is formed in the valve body 33, and

4 nect alternately with the valve operating ports 46, respectively.

A ,port 51 is provided in the valve plate I5 adjacenttovthe wall I6 which communicates at its Vupper end with the compartmentfZIand at its lower end with an arcuate channel 58 formed in the upper surface of the body 33. The channel 58 communicates adjacent to its other end 1 `.with a port 59 in the valve plate I5 which comme shaft la andV4 aslide valve 36 ts slidably in the valve chamyber 35 and is capable of afsmall longitudinal movement therein. The valve 36 comprises four equally spaced ring portions 31 separated by sections 38 of reduced diameter, annular spaces 3B .be i r 1g., thereby formed lbetween the lsections 38 and rthe wall of the valve chamber. The ends 40 of the valve 36 are tapered so as to provide a vspace between the valve 36 and the end of thevalve chamber 35 when the valve is in con- Ports 4I, 42 are provided at the ends ofthe valve chamber 35which connect with curved channels 43, 44 respectively formed inthe upper surface `of the valve body 33. The inner ends yof the channels 43, `44 communicate withivalve operating ports 45, 46 respectively formed in the valve plate I5. y W

The inlet passage II in the shaft communicates through a horizontal port 41 in the body 35 with a port 48 leading downwardly to the interior of the valve 'chamber `35, and with a vertical supply port 49 inthe valve plate I5.

The outlet passage I2 in the shaft communicates through inclined passages 56 inthe shaft with right-angled passages 5I in the body 33 W'hichconnect with outlet ports 52, 53 in the wall of the valve chamber 35. The outlet pasvsage I2 is also connected at its upper end through a passage 54 in the shaft I0 with either of two right-angled discharge passages 55, 56 formed `ber 35.

municates with the compartment 24. A passage 66 in the body 33 connects the end of the channel 58 with an intermediate port 6I in the wall ofthevalve chamber.

A second arcuate channel 62 in the body 33` connects ports 63 and 64 'in the valve plate I5, the port 63 communicating with the compart-v ment 23 and the .port 64 with the compartment 22. A passage 65 connects the end of the channel 62 with an intermediate port 66 in the wall of the valve chamber 35.-'

i i Supplychannels61 and 68 are formed inthe undersurface of the plate 25, these channels being positioned-so as to place theinletport49 alternately in communication with the valve operating ports 45,46 which connect with oppo'- site ends of the valve chamber 35.

In' operation water underv pressure is supplied to the motor through the inlet passage II in the shaft I6. The water passes inwardly through the ports 41 and 46 to the valve chamber 35.*@ If it is assumed that the rotor I8 is in the position shown in Figure 4 the supply channel 61 connects the port 49 with the valve voperating port 45and the port 45 communicates through the .channel 43 with the port4l at one end of thevalve cha-m.-

i water in the opposite end of the valve chamber is allowed to pass'to dischargev as the valve 36'ris movedtowards that end `of the valve chamber,

When the `Valve reaches the position -shownin Figure-7 the inlet port 48 is placed in communication with the intermediate port 6I by means of the passage 39 between the valve and the wall of thev valve chamber and water under -pressure is thus admitted to the channels 60 and. 58 and is admitted through the port 51 to the compartf ment 2| of the rotor chamber and throughthe port .59 to the compartment 24 of' the rotor chamber. This forces the vane I9 of therotor i6 away from the wall I6 and `towards the wall I1, and it forces the vane 26 awayfrom thewall I1 and towards the wall I6. Therotor therefore moves from .the positionv shown in Figure .4 to

the position shown in Figure 2.

During this movement of the rotor part of .the 'water contained in the compartment lpassles outwardly through-the port 64, arcuatechannel 62, passage 65, intermediate port 66, passage 39, port 52, passage 5I, and port 56 to the4 outlet passage I2. Part of the water containedinthe compartment .23 passes outwardly Vthrough the port 63 into the passage 65 and thence bythe same course to the outlet passage I2. f This movement of the yrotor causes the. supply channel' 68 to connect the inlet port 49 to the valve operating port 46 so that water under pressure is admitted through the 'curved channel 44 and port '421-to 'the end of the valve chamber withwhicnthe Thus waterunder pressure is supplied port 42 communicates. At the same time the movement of the rotor places the discharge passage 5E in register with the valve operating port 45 so that the water in the end of the valve chamber 35 adjacent to the port 4i is allowed to pass outwardly through the arcuate channel 43, valve operating port 45, discharge passage 56, passage 54 and outlet passage l2. Thus the valve 36 is moved from the position shown in Figure 7 to the position shown in Figure 6.

When the valve reaches the position shown in Figure 6 the inlet port 48 is in communication with the intermediate port 56 and water under pressure is therefore admitted to the passage B5 and arcuate channel 62. This water passes through the ports 63 and 64 to the compartments 23 and 22 respectively of the rotor chamber and returns the rotor from the position shown in Figure 2 to the position shown in Figure 4. During this movement part of the water contained in the compartments 2l and 24 passes outwardly through the port 5l and channel 58 and through the port 59 and channel 60 to the intermediate port 6l whence it passes through the channel 39, port 53 and passage 5l to the discharge passage l2. The abovementioned cycle then recommences.

By this means oscillatory or reciprocating angular motion is imparted to the rotor i8 and to the coupling 3U. The extent of the angular motion can be varied by altering the size of the segmental plate 25 and the positions of the associated parts. The speed of the motor may be varied by altering the pressure of the water and the diameter of the passages through which it passes. Where the motor is to be used for operating the agitating mechanism of a `domestic Washing machine the inlet and outlet passages are made of such a size as to ensure that reciprocating angular motion of suitable speed is obtained when the motor is connected to water at a pressure comparable with that of a normal household water supply.

I claim:

1. A liquid driven motor, comprising a iixed shaft, a fixed casing mounted concentrically on the shaft, a cylindrical rotor chamber in the casing, a rotor rotatably mounted on the shaft and Within the rotor chamber and capable of oscillating motion in said rotor chamber, at least two radial walls in the rotor chamber extending between the rotor and the periphery of the rotor chamber and dividing said rotor chamber into at least two segmental chambers, at least two radial vanes on the rotor and spaced equidistantly from each other, one of said vanes being located in each segmental chamber and being capable of limited oscillating motion therein, each radial vane dividing the segmental chamber in which it is located into ya rst compartment and a second compartment, a valve body secured to the casing at one end of the rotor chamber, a valve chamber in the valve body, a Valve slidable in the valve chamber, a longitudinal inlet passage in the shaft through which liquid under pressure is supplied t0 the motor, an outlet passage for the discharge of liquid from the motor, an inlet port in the valve chamber communicating with the inlet passage, an outlet port in the valve chamber communicating with the outlet passage, intermediate ports in the valve chamber, a rst arcuate channel in the valve body communicating between one intermediate port and the Iirst compartments, a second arcuate channel in the valve body communicating between the other intermediate port and the second compartments, channels in the valve which alternately place the intermediate ports in communication with the inlet and outlet ports as the valve reciprocates in the valve chamber, end ports in the valve chamber adjacent the ends thereof, valve operating ports in the end of the rotor chamber which communicate with the said end ports, a valve member on one of the radial varies, which valve member is in sliding contact with the said end of the rotor chamber, supply channels in the said valve member which alternately connect the valve operating ports to the inlet passage when the rotor is in its limiting positions, and discharge passages in the valve member which alternately connect the valve 0perating ports to the outlet passage, each valve operating port being connected to supply when the other is connected to discharge.

2. A liquid driven motor according to claim 1 and having a valve plate disposed between the valve body and the rotor chamber, the valve operating ports and la supply port being formed in said valve plate, and channels in the valve member one of which connects the supply port to one of the valve operating ports when the rotor is in one limiting position and the other of which connects the supply port to the other valve operating port, when the rotor is in the other limiting position.

3. A liquid driven motor according to claim 1 and having a valve plate disposed between the valve body and the rotor chamber, the valve operating ports and a supply port being formed in said valve plate, channels in the valve member. one of which connects the supply port to one of the valve operating ports when the rotor is in one limiting position, and the other of which connects the supply port to the other valve operating port when the rotor is in the other limiting position, and discharge ports in the valve member which are connected by the discharge passages with the outlet passage, one discharge port being aligned with each valve operating port when the other valve operating port is connected to the supply port.

4. A liquid driven motor according to claim 1 wherein the valve member comprises a segmental plate formed on one end of a radial vane, the ends of said segmental plate alternately engaging the radial walls at the completion of each angular movement of the rotor.

OSCAR ADOLF GRANOWSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

